6429968856863 has 4 divisors (see below), whose sum is σ = 6433204877400. Its totient is φ = 6426732836328.

The previous prime is 6429968856833. The next prime is 6429968856869. The reversal of 6429968856863 is 3686588699246.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6429968856863 - 2¹⁴ = 6429968840479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6429968856869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1618007288 + ... + 1618011261.

It is an arithmetic number, because the mean of its divisors is an integer number (1608301219350).

Almost surely, 2^{6429968856863} is an apocalyptic number.

6429968856863 is a deficient number, since it is larger than the sum of its proper divisors (3236020537).

6429968856863 is a wasteful number, since it uses less digits than its factorization.

6429968856863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3236020536.

The product of its digits is 6449725440, while the sum is 80.

The spelling of 6429968856863 in words is "six trillion, four hundred twenty-nine billion, nine hundred sixty-eight million, eight hundred fifty-six thousand, eight hundred sixty-three".